Problem Display
PID: 19580 (8/4p3/4Kp2/2p4p/1nBk4/2pPp1P1/3nP3/Q7 w - - 0 1)

Cook, Eugene Beauharnais

Frank Leslie's Illustrated Newspaper, 1856

8/4p3/4Kp2/2p4p/1nBk4/2pPp1P1/3nP3/Q7

#4

6 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh4+
          • 2...Se4
            • 3.Qxe4#
      • 1...Sf3
        • 2.exf3
          • threat
            • 3.Qh4#
          • 2...Sxd3
            • 3.Qh4+
              • 3...Sf4+
                • 4.Qxf4#
          • 2...Sd5
            • 3.Qh4+
              • 3...Sf4+
                • 4.Qxf4#
          • 2...f5
            • 3.Qh4+
              • 3...f4
                • 4.Qxf4#
      • 1...f5
        • 2.Qa8
          • threat
            • 3.Qh8#
          • 2...Sxc4
            • 3.Qd8+
              • 3...Sd5
                • 4.Qxd5#
              • 3...Sd6
                • 4.Qh8#
            • 3.Qh8+
              • 3...Se5
                • 4.Qxe5#
          • 2...Sf3
            • 3.Qd8+
              • 3...Sd5
                • 4.Qxd5#
            • 3.Qh8+
              • 3...Se5
                • 4.Qxe5#
          • 2...Se4
            • 3.Qd8+
              • 3...Sd5
                • 4.Qxd5#
              • 3...Sd6
                • 4.Qh8#
          • 2...Sc6
            • 3.Qh8+
              • 3...Se5
                • 4.Qxe5#

FEATURES


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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).